Sony SA-WMSP69 User manual

SERVICE MANUAL
Sony Corporation
Audio Group
Published by Sony Engineering Corporation
US Model
SUB WOOFER
9-879-650-01
2005E04-1
© 2005.05
Ver. 1.0 2005.05
SPECIFICATIONS
SA-WMSP69
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6 ohm loads, from 28 – 200 Hz; rated 120
watts, minimum RMS power, with no more than
0.8% total harmonic distortion from 250
milliwatts to rated output.
Speaker system Active subwoofer,
magnetically shielded
Speaker unit 250 mm cone type
Enclosure type Acoustically loaded bass
reflex
RMS output 160 W (6 ohms, 100 Hz,
THD 10%)
Input LINE IN (input pin jacks)
Power requirements 120 V AC, 60 Hz
Power consumption 120 W
Dimensions (w/h/d) (Approx.)
337 ×410 ×366 mm
(13 1/4 ×16 1/8 ×14 1/2 inches)
including front panel
Mass (Approx.) 13.0 kg (28 lb 11 oz)
Design and specifications are subject to change without
notice.
•SA-WMSP69 is the subwoofer section
in HT-6900DP/9900M.

2
SA-WMSP69
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
•UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
1.5 k Ω 0.15 µ F
AC
voltmete
r
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are
examples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are
suitable. (See Fig. A)
TABLE OF CONTENTS
1. DIAGRAMS
1-1. Circuit Boards Location .................................................. 3
1-2. Schematic Diagram – Main Section – ............................. 5
1-3. Printed Wiring Boards – Main Section – ......................... 6
2. EXPLODED VIEWS
2-1. Front Section ................................................................... 7
2-2. Rear Section .................................................................... 8
3. ELECTRICAL PARTS LIST .................................. 9
(Fig. A)

3
SA-WMSP69
SECTION 1
DIAGRAMS
1-1. CIRCUIT BOARDS LOCATION
MAIN board
CONTROL board
INPUT board
POWER TRANS board
SWITCH board

4
SA-WMSP69
• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
•A: B+ Line.
•B: B– Line.
•Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : Power on
•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
•Signal path.
F: AUDIO
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
For schematic diagrams:
Note:
•All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise
specified.
•C: panel designation.
Note: The components identified by mark 0or dotted line
with mark 0are critical for safety.
Replace only with part number specified.
For printed wiring boards:
Note:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•:Pattern from the side which enables seeing.

SA-WMSP69
55
SA-WMSP69
1-2. SCHEMATIC DIAGRAM — MAIN SECTION —
JW403
JW404
JW1
C209
C211
C301
C401
C402
C409
C410
D305
R110
R202
R207
R209
R212 R213 R216
R304
R305
R306
R312
R314
R317
R500R501
R502R503
R504
R505
C304 C305
C306
C308
C313
C319
C320
C407
C408
C318
D303
D304
J101
Q306
Q308
Q311
R320
R322R323
R326
R401
S901
R325
R321
C201
C203 C204
C205
C206
C302
C303
C405
C406
C501
C502
C601
C801
R327
R402
Q307
C307
C310 R307
R308
Q302
R309 R324
R310
C901
R403
R404
R206R205
C101
R211
R210
R214 C207
C208 RV801
R217
C210
R301
R313
D301
D302
C403
C404
R101
R102
CN2
CN1
CN3
CN301
RY301
C503
R311
CN101 CN201
T1
Q502
SP901
R319
R318
R329 Q310
Q309
C309
IC202(1/2)
IC202(2/2)
D205
D206
C311
C312
IC203(1/2)
IC203(2/2)
CNP111 CNP801
Q301
Q304
Q303
Q305
R316
R328
Q504
Q503
Q501
D501
D401
R601
D402
D403
CN402 CNP401
F901
C2
CN4 D901
CN204

SA-WMSP69
66
SA-WMSP69
•Refer to page 3 for Circuit Boards Location. : Uses unleaded solder.
1-3. PRINTED WIRING BOARDS — MAIN SECTION —
1
A
B
C
D
E
F
G
H
I
23456789101112
1-865-997-
1-866-725-
1-866-000-
1-865-998-
1-865-999-
SP901
SPEAKER
RV801
LEVEL
J101
INPUT
CNP801
C801
PNK
BLK
WHT PNK
(CHASSIS)
(CHASSIS)
BLK
WHT
CN101
RED
WHT
WHT
D901
S901
C901
CN3
CN4
S901,D901
POWER
CN1 CN2
C2
F901
AC IN
T2
POWER TRANSFORMER
JW1
G2
JW123
JW403
JW402
JW401
JW101
JW102
JW113
JW114
JW110
C319
Q309
C320
Q308
C211
C201
Q310
IC202
C209
R317
C311
R206
R504
CN402
CN204
R207
RY301
CN301
D401
R211
CN201
D305
Q307
IC203
R321
C101
R500
R403
C309
R601
R327
C318
R505
R311
C208
C310
R502
R402
R401
C503
R217
C502
CNP111
C207
C210
C501
C203 C204
R209
R210
R216
C205
C206
D205 D206
C401 C402
C601
C312
C405
C406
C407
C408
Q501
Q502
Q503
Q504
R501
R503
JW111
C307
R306
C303
R304
D301
D302
C301
Q303
R324
Q305
C306
Q306
R325
R326
R305
R313
R301
C305
C304
R310
Q304
Q302
R308
C302
R307
Q301
D304
D303
C308
Q311
R320
R101
C409
C410
R404
D402
D403
C313
R214
R110
R328
R329
R316
R102
JW120
R202
R205
JW119
R213
R212
JW118
JW301
C403
C404
D501
JW103
JW501
JW502
R312
JW404
JW115
JW107
R314
R323
R322
JW106
JW124
JW104
R319
R318
JW130
JW109
JW125
JW112
G1
JW126
JW116
JW117
JW121
R309
B
B
C
E
B
C
E
B
C
EB
C
E
CE
B
C
E
B
C
E
B
C
E
BCE
BCE
BCE
ECB
14
85
14
85
E
C
B
RED
RED
BLK
CNP401 61
6
12 12 13
1
D205 C-9
D206 C-9
D301 A-10
D302 A-11
D303 B-10
D304 B-10
D305 E-9
D401 I-8
D402 G-8
D403 G-8
D501 F-8
IC202 C-8
IC203 B-9
Q301 B-10
Q302 B-10
Q303 C-11
Q304 C-11
Q305 C-11
Q306 C-11
Q307 E-12
Q308 G-12
Q309 C-10
Q310 F-12
Q311 C-10
Q501 E-8
Q502 E-9
Q503 E-8
Q504 E-8
• Semiconductor
Location
Ref. No. Location

7
SA-WMSP69
SECTION 2
EXPLODED VIEWS
14-253-282-31 PUSH KNOB
24-253-280-01 GRILLE FRAME
34-253-279-11 WOOFER RING
SP901 1-825-768-11 LOUD SPEAKER (25cm)
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
NOTE:
•The mechanical parts with no reference
number in the exploded views are not supplied.
•Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
•-XX and -X mean standardized parts, so
they may have some difference from the
original one.
•Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
•Accessories are given in the last of this parts list.
2-1. FRONT SECTION
RR
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
SP901
not supplied
not supplied
not supplied
not supplied
(SWITCH board)
1
3
2

8
SA-WMSP69
51 A-1084-745-A SPEAKER CABINET ASSY
*52 3-703-244-00 BUSHING (2104), CORD
053 1-783-820-11 CORD, POWER
54 2-349-022-11 SCREW +BVTP (4X20) (TYPE1)
55 A-1090-358-A MAIN BOARD, COMPLETE
56 3-905-609-31 SCREW (TRANSISTOR)
57 4-999-482-81 KNOB (VOL)
0F901 1-533-452-12 FUSE, GLASS TUBE (DIA. 5) (4A/125V)
Q307 6-702-391-01 TRANSISTOR MP1620-OPY-MK
Q308 6-702-390-01 TRANSISTOR MN2488-OPY-MK
0T1 1-443-652-11 TRANSFORMER, POWER
#1 7-685-881-09 SCREW +BVTT 4X8 (S)
#2 7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
2-2. REAR SECTION
F901
51
52
54
54 56
55
53
57
54
A
A
supplied with RV801
not supplied
(POWER TRANS board)
not supplied
(CONTROL board)
not supplied
(INPUT board)
not supplied
not supplied
not supplied
T1
Q308
Q307
#2
#1
#1
#1
#2
#2
#2
not supplied
54

9
SA-WMSP69
SECTION 3
ELECTRICAL PARTS LIST
CONTROL BOARD
***************
< CAPACITOR >
C801 1-126-964-11 ELECT 10uF 20% 50V
< CONNECTOR >
CNP801 1-691-765-11 PLUG (MICRO CONNECTOR) 3P
< VARIABLE RESISTOR >
RV801 1-227-511-11 RES, VAR, CARBON 20K (LEVEL)
*************************************************************
INPUT BOARD
************
< CONNECTOR >
*CN101 1-506-944-11 PIN, CONNECTOR 2P
< JACK >
J101 1-815-025-11 JACK, PIN 1P (INPUT)
*************************************************************
A-1090-358-A MAIN BOARD, COMPLETE
*********************
< CAPACITOR >
C101 1-128-813-11 CERAMIC 220PF 5% 50V
C201 1-126-964-11 ELECT 10uF 20% 50V
C203 1-137-190-11 FILM 0.22uF 5% 50V
C204 1-137-190-11 FILM 0.22uF 5% 50V
C205 1-126-964-11 ELECT 10uF 20% 50V
C206 1-126-964-11 ELECT 10uF 20% 50V
C207 1-136-157-00 FILM 0.022uF 5% 50V
C208 1-136-175-00 FILM 0.68uF 5% 50V
C209 1-128-813-11 CERAMIC 220PF 5% 50V
C210 1-126-964-11 ELECT 10uF 20% 50V
C211 1-128-813-11 CERAMIC 220PF 5% 50V
C301 1-128-813-11 CERAMIC 220PF 5% 50V
C302 1-126-964-11 ELECT 10uF 20% 50V
C303 1-104-658-11 ELECT 100uF 20% 10V
C304 1-128-813-11 CERAMIC 220PF 5% 50V
C305 1-162-302-11 CERAMIC 0.0022uF 20% 16V
C306 1-162-282-31 CERAMIC 100PF 10% 50V
C307 1-128-560-11 ELECT 22uF 20% 100V
C308 1-162-199-31 CERAMIC 10PF 5% 50V
C309 1-126-947-11 ELECT 47uF 20% 35V
C310 1-128-560-11 ELECT 22uF 20% 100V
C311 1-127-876-11 CERAMIC 0.01uF 10% 50V
C312 1-127-876-11 CERAMIC 0.01uF 10% 50V
C313 1-162-282-31 CERAMIC 100PF 10% 50V
C318 1-128-819-11 CERAMIC 680PF 5% 50V
C319 1-162-282-31 CERAMIC 100PF 10% 50V
C320 1-162-282-31 CERAMIC 100PF 10% 50V
C401 1-136-497-81 FILM 0.1uF 5% 50V
C402 1-136-497-81 FILM 0.1uF 5% 50V
C403 1-104-482-11 ELECT 4700uF 20% 63V
C404 1-104-482-11 ELECT 4700uF 20% 63V
C405 1-126-968-11 ELECT 100uF 20% 50V
C406 1-126-968-11 ELECT 100uF 20% 50V
C407 1-126-971-11 ELECT 470uF 20% 50V
C408 1-126-971-11 ELECT 470uF 20% 50V
C409 1-136-497-81 FILM 0.1uF 5% 50V
C410 1-136-497-81 FILM 0.1uF 5% 50V
C501 1-126-964-11 ELECT 10uF 20% 50V
C502 1-126-949-11 ELECT 220uF 20% 35V
C503 1-126-923-11 ELECT 220uF 20% 10V
C601 1-126-964-11 ELECT 10uF 20% 50V
< CONNECTOR >
*CN201 1-506-944-11 PIN, CONNECTOR 2P
CN204 1-564-505-11 PLUG, CONNECTOR 2P
CN301 1-564-320-00 PIN, CONNECTOR (3.96mm PITCH) 2P
CN402 1-785-104-11 PIN, CONNECTOR (3.96mm PITCH) 6P
CNP111 1-691-765-11 PLUG (MICRO CONNECTOR) 3P
< DIODE >
D205 8-719-110-31 DIODE RD12ESB2
D206 8-719-110-31 DIODE RD12ESB2
D301 8-719-991-33 DIODE 1SS133T-77
D302 8-719-991-33 DIODE 1SS133T-77
D303 8-719-991-33 DIODE 1SS133T-77
D304 8-719-991-33 DIODE 1SS133T-77
D305 8-719-991-33 DIODE 1SS133T-77
D401 8-719-510-68 DIODE D5SBA204101
D402 6-500-522-11 DIODE 10EDB40-TA2B5
D403 6-500-522-11 DIODE 10EDB40-TA2B5
D501 8-719-991-33 DIODE 1SS133T-77
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
NOTE:
•Due to standardization, replacements in
the parts list may be different from the
parts specified in the diagrams or the
components used on the set.
•-XX and -X mean standardized parts, so
they may have some difference from the
original one.
•RESISTORS
All resistors are in ohms.
METAL:Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F:nonflammable
•Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
• SEMICONDUCTORS
In each case, u : µ, for example:
uA.. : µA.. uPA.. : µPA..
uPB.. : µPB.. uPC.. : µPC.. uPD.. : µPD..
•CAPACITORS
uF : µF
•COILS
uH : µH
The components identified by
mark 0or dotted line with mark.
0are critical for safety.
Replace only with part number
specified.
When indicating parts by reference
number, please include the board.
CONTORL INPUT MAIN

10
SA-WMSP69
< GROUND TERMINAL >
G1 1-537-738-21 TERMINAL, GROUND
G2 1-537-738-21 TERMINAL, GROUND
< IC >
IC202 8-759-636-74 IC M5218AP-22
IC203 8-759-636-74 IC M5218AP-22
< TRANSISTOR >
Q301 8-729-140-82 TRANSISTOR 2SA988-PAFAEA
Q302 8-729-140-82 TRANSISTOR 2SA988-PAFAEA
Q303 8-729-119-78 TRANSISTOR 2SC2785-HFE
Q304 8-729-140-82 TRANSISTOR 2SA988-PAFAEA
Q305 8-729-119-78 TRANSISTOR 2SC2785-HFE
Q306 8-729-270-51 TRANSISTOR 2SC2705-O
Q309 8-729-119-76 TRANSISTOR 2SA1175-HFE
Q310 8-729-141-30 TRANSISTOR 2SC3623A-LK
Q311 8-729-214-51 TRANSISTOR 2SA1145-O
Q501 8-729-119-78 TRANSISTOR 2SC2785-HFE
Q502 8-729-178-42 TRANSISTOR 2SC2784-F
Q503 8-729-119-78 TRANSISTOR 2SC2785-HFE
Q504 8-729-029-86 TRANSISTOR DTC124ESA
< RESISTOR >
R101 1-247-871-11 CARBON 47K 5% 1/4W
R102 1-247-871-11 CARBON 47K 5% 1/4W
R110 1-247-879-11 CARBON 100K 5% 1/4W
R202 1-247-831-11 CARBON 1K 5% 1/4W
R205 1-247-879-11 CARBON 100K 5% 1/4W
R206 1-249-429-11 CARBON 10K 5% 1/4W
R207 1-249-429-11 CARBON 10K 5% 1/4W
R209 1-247-847-11 CARBON 4.7K 5% 1/4W
R210 1-247-871-11 CARBON 47K 5% 1/4W
R211 1-247-863-11 CARBON 22K 5% 1/4W
R212 1-249-428-11 CARBON 8.2K 5% 1/4W
R213 1-249-428-11 CARBON 8.2K 5% 1/4W
R214 1-247-879-11 CARBON 100K 5% 1/4W
R216 1-249-429-11 CARBON 10K 5% 1/4W
R217 1-247-879-11 CARBON 100K 5% 1/4W
R301 1-247-847-11 CARBON 4.7K 5% 1/4W
R304 1-247-871-11 CARBON 47K 5% 1/4W
R305 1-249-413-11 CARBON 470 5% 1/4W
R306 1-249-406-11 CARBON 120 5% 1/4W
R307 1-249-411-11 CARBON 330 5% 1/4W
R308 1-249-411-11 CARBON 330 5% 1/4W
R309 1-249-408-11 CARBON 180 5% 1/4W F
R310 1-249-408-11 CARBON 180 5% 1/4W
0R311 1-215-868-00 METAL OXIDE 680 5% 1W F
R312 1-247-863-11 CARBON 22K 5% 1/4W
R313 1-247-863-11 CARBON 22K 5% 1/4W
R314 1-247-871-11 CARBON 47K 5% 1/4W
R316 1-249-408-11 CARBON 180 5% 1/4W F
R317 1-249-393-11 CARBON 10 5% 1/4W
R318 1-249-414-11 CARBON 560 5% 1/4W
R319 1-247-871-11 CARBON 47K 5% 1/4W
R320 1-249-393-11 CARBON 10 5% 1/4W F
R321 1-249-407-11 CARBON 150 5% 1/4W F
R322 1-247-863-11 CARBON 22K 5% 1/4W
R323 1-249-429-11 CARBON 10K 5% 1/4W
R324 1-249-408-11 CARBON 180 5% 1/4W F
R325 1-249-401-11 CARBON 47 5% 1/4W F
R326 1-249-393-11 CARBON 10 5% 1/4W F
R327 1-234-182-11 ENCAPSULATED COMPONENT 0.22X2 5W
R328 1-249-408-11 CARBON 180 5% 1/4W F
R329 1-249-421-11 CARBON 2.2K 5% 1/4W
0R401 1-215-892-11 METAL OXIDE 1K 5% 2W F
0R402 1-215-892-11 METAL OXIDE 1K 5% 2W F
0R403 1-219-786-11 FUSIBLE 22 5% 1/4W F
0R404 1-219-786-11 FUSIBLE 22 5% 1/4W F
R500 1-249-421-11 CARBON 2.2K 5% 1/4W
R501 1-249-429-11 CARBON 10K 5% 1/4W
R502 1-247-871-11 CARBON 47K 5% 1/4W
R503 1-247-879-11 CARBON 100K 5% 1/4W
R504 1-247-879-11 CARBON 100K 5% 1/4W
R505 1-247-863-11 CARBON 22K 5% 1/4W
R601 1-247-831-11 CARBON 1K 5% 1/4W
< RELAY >
RY301 1-515-920-11 RELAY (24V)
*************************************************************
POWER TRANS BOARD
*******************
1-533-399-31 HOLDER, FUSE
< CAPACITOR >
0C2 1-117-703-11 CERAMIC 0.0047uF 250V
< CONNECTOR >
CN1 1-564-321-00 PIN, CONNECTOR (3.96mm PITCH) 2P
*CN2 1-580-230-11 PIN, CONNECTOR (PC BOARD) 2P
*************************************************************
SWITCH BOARD
*************
< CAPACITOR >
0C901 1-117-703-11 CERAMIC 0.0047uF 250V
< CONNECTOR >
*CN3 1-695-044-11 PIN, CONNECTOR (3.96mm PITCH) 2P
*CN4 1-564-517-11 PLUG, CONNECTOR 2P
< DIODE >
D901 6-501-077-01 LED LNH301MPU0A1 (POWER)
< SWITCH >
0S901 1-554-920-11 SWITCH, PUSH (AC POWER) (1 KEY) (POWER)
*************************************************************
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
MAIN POWER TRANS SWITCH

11
SA-WMSP69
MISCELLANEOUS
***************
053 1-783-820-11 CORD, POWER
0F901 1-533-452-12 FUSE, GLASS TUBE (DIA. 5) (4A/125V)
Q307 6-702-391-01 TRANSISTOR MP1620-OPY-MK
Q308 6-702-390-01 TRANSISTOR MN2488-OPY-MK
SP901 1-825-768-11 LOUD SPEAKER (25cm)
0T1 1-443-652-11 TRANSFORMER, POWER
Ref. No. Part No. Description Remark

12
SA-WMSP69
REVISION HISTORY
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Ver. Date Description of Revision
1.0 2005.05 New